Parametric resonance for vibration energy harvesting with design techniques to passively reduce the initiation threshold amplitude

Yu Jia, Jize Yan, Kenichi Soga, Ashwin A Seshia

Research output: Contribution to journalArticle

Abstract

A vibration energy harvester designed to access parametric resonance can potentially outperform the conventional direct resonant approach in terms of power output achievable given the same drive acceleration. Although linear damping does not limit the resonant growth of parametric resonance, a damping dependent initiation threshold amplitude exists and limits its onset. Design approaches have been explored in this paper to passively overcome this limitation in order to practically realize and exploit the potential advantages. Two distinct design routes have been explored, namely an intrinsically lower threshold through a pendulum-lever configuration and amplification of base excitation fed into the parametric resonator through a cantilever-initial-spring configuration. Experimental results of the parametric resonant harvesters with these additional enabling designs demonstrated an initiation threshold up to an order of magnitude lower than otherwise, while attaining a much higher power peak than direct resonance.
Original languageEnglish
Article number065011
JournalSmart Materials and Structures
Volume23
Issue number6
DOIs
Publication statusPublished - 25 Apr 2014

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Energy harvesting
Vibrations (mechanical)
Harvesters
vibration
thresholds
Damping
damping
levers
pendulums
Pendulums
configurations
Amplification
energy
Resonators
resonators
routes
output
excitation

Bibliographical note

©2014 IOP Publishing Ltd. After the Embargo Period, the full text of the Accepted Manuscript may be made available on the non-commercial repository for anyone with an internet connection to read and download. After the Embargo Period a CC BY-NC-ND 3.0 licence applies to the Accepted Manuscript, in which case it may then only be posted under that CC BY-NC-ND licence provided that all the terms of the licence are adhered to, and any copyright notice and any cover sheet applied by IOP is not deleted or modified.

Cite this

Jia, Yu ; Yan, Jize ; Soga, Kenichi ; Seshia, Ashwin A. / Parametric resonance for vibration energy harvesting with design techniques to passively reduce the initiation threshold amplitude. In: Smart Materials and Structures. 2014 ; Vol. 23, No. 6.
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Parametric resonance for vibration energy harvesting with design techniques to passively reduce the initiation threshold amplitude. / Jia, Yu; Yan, Jize; Soga, Kenichi; Seshia, Ashwin A.

In: Smart Materials and Structures, Vol. 23, No. 6, 065011, 25.04.2014.

Research output: Contribution to journalArticle

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